Door lock



' March 12, 1929.

H. O. RIVERS DOOR LOCK Filed Oct. 11, 1922 2 Sheets-Sheet 1 .1

March 12, 1929.

H. O. RIVERS DOOR LOCK Filed Oct. 11. 1922 2 Sheets-Sheet 2 Patented M... 12, 1929.

-HECTOR osMoNn RIVERS, or ESSENDON, NEAR MELBOURN -"V TOR A, AUs'rRAL A. j,

. noon LOCK.

Application filed October 11, 1922, Serial No.

This invention relates to an improved door lock and has been devised in order to provide a latch .which defies the lock picker and which is preferably combined with a locking bar or bolts to further reduce the risk of'unauthorized entry into shops or dwelling houses. 7 I The essential characteristics embodied in this invention consist in means whereby the lockmechanism may be interrupted at will so that a skeleton or likeillegal key cannot operate in such a way that the lock responds thereto, thus causing thedoor to which the lock isfitted to open.

The. lockis also characterized in that the key, on insertion, does not require turning,

the fact of inserting the key, once the mechanism isin a condition to receive same, to cause all the lock mechanism to harmonize and be capable of operation. A further essential haracteristic of this invention is that once the lock mechanism is interrupted a keylcannot enter the keyway for the reasons to be hereinafter described.

, A further essential feature which characterizes thisinvention is that when the door .is locked the operating handle of. the lock movesfreely and does not function until such time as the key is.inserted in thefkeyway, and when the various-mechanisms are in a condition to recelve the key and respond to its insertion. c

, But to more readily understand th1s 1n- .vention it will now be described with reference to. the accompanying drawing in which r Figure 1 is a front elevation of a lock constructed according to this invention."

Figure 2 is a side elevation thereof. Figure 3 is a rear elevation thereof. Figure 4 is a side elevation of an internal pin barrel.

Figure 5 is a transverse section thereof. Figure 6 is a plan view of the pin controlling bar.

Figure 7 thereof.

Figure 8 is a central sectional elevation of a modification of Figures 6 and 7.

Figure 9 areviews in plan and side eleva tion of an extension plece.

Figure 10 is a central sectional elevation of the lock illustrated in Figures 1, 2, and 3.

Figure 11 is a transverse sectional elevation thereof; 7

According to this invention, the body 1 is 'a central sectional elevation 593,857. and in Austr alia December ,1', 1921.

of the lock preferably formed of brass or gun metal and 'is preferably circular in;

shape with a ,rim or, flange 2f at the front which seats on. the outer surface ofttheldoor. while the. body 1 enters a. hole suitably shaped in the door and extends to a suflicient depth approximately the thickness of the door.., If a particular door is above average thickness, extension pieces 1 are used adapt. I

ed to fit on the'squared end 1 of member '5. This. body member 1 is bored preferably at the top to receive .anoutwardly projecting spindle3 fitted externally of the (1 0 5 witha, le handle 4. 1

The spindle 3 is fitted withina barrel or l sleeve 5-and projected to the'front of the Th sleeve or barrel 5 is P ovided with a' d plurality of holes "6 .and a centralhole 7 adapted to receive the portion 8 ofthe spindle3." I y The portion 8 is formed with a slot.}9

adapted to receive a resilient filling. con- -sisting of upper and lower plates 10 -.1 0T

and springs 11 or alternatively the springs- 11 may support independent plates 12 V each 'plate corresponding with -the number of locking pins used.

The barrel 5 is the look by means ofa screw 13 which passes through said body and into an annular groove '14 formed on the barrel .5. V

Thespindle 3 is formed with a flat '15 adapted 'to'. receiveitheoperating. handlef l' which is kept in position by means of a. screw 16 the shank of which passes into the end of the spindle 3. v

The section illustrated in Figure 10 shows the lock in open position with'the locking pins 15 uppermost.

held within the body .1 of

' This open orunlocked position is obtained 1 by inserting the key in th'e'keyway 16 which lifts the lower lifting pins 17 sufficiently to cause the locking pins to rise clear from the holes 18 in which the lifting pins 17 are I seated.

,On then turning the handle 4 the barrel 5 moves also which carries the pins 15 to lock" the door the barrel 5 is turned which brings the pins 15 and 17 together as. shown in Figure 11 when the barrel 5is held from further rotation until the key is again i11 moved to the position shown in Figures 1 andvv 2which brings the resilient slotway of although the barrel;5,is-locked,the bar 8 is free to rotate which is done in order to interrupt the mechanism and bring the solid surface 18 of the bar 8 against the locking pins which prevents the insertion of a key to operate the lock.

In operating the lock the handle 4 is the bar 8 into line With the lockingpins 15 which enables the key to operate and lift the lower lifting pins 17 and locking pins 1 v15', the locking pins 15 moving into the slot way 9 sufiiciently to carry said pins 15 clear of the holes 18in which the lifting pins 17 are seated, the key being then Withdrawn. V Inrcarrying the lock into operation and in order't'o locka door thereby, the barrel 5 is rotated by means of the handle 4, thus bringing the pins 15 and 17 together as shown, when the barrel 5 is held from further rotation until the key is again inserted, incidentally the bar 8 is free to rotate and thus interrupt the lock mechanism and bring the solid surface 18 of the bar 8 against the locking pins18 which prevents the insertion offa key to operate the lock'.

What I claim as my invention and desire to secure by Letters Patent is 1. A look comprising, a body, a sleeve housed in the body, a bar housed in the sleeve, a'handle on the bar, a slot in the bar, plates positioned in the slot, and springs cooperating with the plates to press theni outwardlytoward the peripheryof the bar.

' 2. A lo'ckaccording to claim 1, said sleeve having a plurality of apertures, and a groove i adapted to receive attaching means carried by the body.

3. A lock comprising a hollow body, .a

flange thereon, a sleeve positionedin the body, a bar received by the sleeve, pin receiving apertures 1n the sleeve, locking pins 1n the sleeve apertures, a slot biased outwardly in the bar, spring controlled plates.

in the slot, apertures in the body, said plates pushing said locking pins across the joint,

between said sleeve and body when said pins come into'registry withsaid body apertures, lifting pins in the body apertures for'pushing said locking pins Within'the peripheral r bounds of said. sleeve when engaged by a suitable'key, a keyway in the body open-' ing into the body apertures,"'a screw and groove connection between the body and the sleeve, and an operating handle on the bar.

4. Ina lock, means for preventing unauthorized use, comprising, a lock body, lifting pins in the body, a sleeve turnable' in the body, a bar 'turnable at times :in the sleeve, locking pins int-he sleeve operable to prevent relative rotation" of the sleeveand bar, rotation of the barrel; resulting in en'- gagement of the locking pins with the lift ing pins. I A

5. A lock comprising, a body, a slotted bar therein,a plurality of spring controlled plates in the slot, a sleeve receiving the bar,

and locking pins corresponding in number to, and cooperating with,'l the,,spring controlled plates and normally biased out-T wardly by said plates;

' Signed at Melbourne, Victoria, Australia, this 31st day of August,"A. D. 1922."

HECTOR OSMOND RIVERS. 

